EMPLOYEE BENEFIT PLANS (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of changes in the fair value of pension plan assets
Transfers into Level 3	$ 15.6	$ (4.2)	$ (5.3)
Transfers out of Level 3	7.0	(11.0)	4.2
Pension Benefits
Reconciliation of changes in the fair value of pension plan assets
Beginning balance at January 1	1,390.0
Net realized and unrealized gains (losses)	205.4	173.6
Ending balance at December 31	1,570.6	1,390.0
Pension Benefits | Level 3
Reconciliation of changes in the fair value of pension plan assets
Beginning balance at January 1	5.2	7.8
Net realized and unrealized gains (losses)	(0.7)	0.7
Purchases	0.6	1.7
Sales	(2.4)	(2.4)
Transfers into Level 3	1.4	0.1
Transfers out of Level 3	(0.4)	(2.7)
Ending balance at December 31	3.7	5.2
Net realized and unrealized gains (losses)	(0.5)	0.4
Pension Benefits | Foreign government debt
Reconciliation of changes in the fair value of pension plan assets
Ending balance at December 31	19.3	24.5
Pension Benefits | Foreign government debt | Level 3
Reconciliation of changes in the fair value of pension plan assets
Beginning balance at January 1	4.1	5.7
Net realized and unrealized gains (losses)	(0.3)	0.5
Purchases	0.6	1.2
Sales	(2.0)	(2.0)
Transfers into Level 3	0	0
Transfers out of Level 3	0	(1.3)
Ending balance at December 31	2.4	4.1
Net realized and unrealized gains (losses)	(0.2)	0.3
Pension Benefits | Corporate debt
Reconciliation of changes in the fair value of pension plan assets
Ending balance at December 31	251.3	198.3
Pension Benefits | Corporate debt | Level 3
Reconciliation of changes in the fair value of pension plan assets
Beginning balance at January 1	1.0	2.1
Net realized and unrealized gains (losses)	(0.4)	0.2
Purchases	0	0.5
Sales	(0.4)	(0.4)
Transfers into Level 3	1.4	0
Transfers out of Level 3	(0.3)	(1.4)
Ending balance at December 31	1.3	1.0
Net realized and unrealized gains (losses)	(0.3)	0.1
Pension Benefits | Asset-backed securities
Reconciliation of changes in the fair value of pension plan assets
Ending balance at December 31	61.8	56.6
Pension Benefits | Asset-backed securities | Level 3
Reconciliation of changes in the fair value of pension plan assets
Beginning balance at January 1	0.1	0
Net realized and unrealized gains (losses)	0	0
Purchases	0	0
Sales	0	0
Transfers into Level 3	0	0.1
Transfers out of Level 3	(0.1)	0
Ending balance at December 31	0	0.1
Net realized and unrealized gains (losses)	0	0
Pension Benefits | Other
Reconciliation of changes in the fair value of pension plan assets
Ending balance at December 31	17.4	11.3
Pension Benefits | Other | Level 3
Reconciliation of changes in the fair value of pension plan assets
Ending balance at December 31	$ 0	$ 0